Answer to Question #9696 in Mechanics | Relativity for Elly M De La Cruz

Question

College softball distance from the pitcher's mound to the batter is 43 feet. If the ball leaves the bat at 85 mph, how much time elapses between the hit and the ball reaching the pitcher?

Answer 1

1 Mile = 5280 Feet
So, the time which elapses between the hit and the ball
reaching the pitcher:
t = d / v = 43 / (85 * 5280) = 43 / 448800 hrs
To
get the answer in seconds, we should multiply it by 60 * 60 = 3600.
t = 3600
* 43 / 448800 = 0.344919786 = approx. 0.345 seconds.